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Bosch Therm gas and propane tankless water heaters and Bosch Powerstream electric tankless water heaters.

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Bosch Spare Parts

GlobalTowne sells replacement parts for all Bosch gas, propane and electric tankless water heaters and electric mini-tanks. We list the most common Bosch heat exchangers, water valves, gas valves, control boards, control boxes and hydrogenerator on this page. Call us at 888.726.9752 for pricing and availability on all other Bosch parts.

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  1. Bosch Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446)

    Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446)

    Bosch Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446) Learn More

    Regular Price: $129.95

    Special Price: $99.95

    Details
  2. Bosch Ariston GLS Kit for GL2.5S/GL4S/ES2.5/ES4

    Ariston GLSKit for GL2.5S/GL4S/ES2.5/ES4

    Bosch Ariston GLS Kit for GL2.5S/GL4S/ES2.5/ES4 Learn More

    Regular Price: $129.95

    Special Price: $99.95

    Details
  3. Bosch Ariston GL6+S Kit for GL6+S / GL8TiS / ES8

    Ariston GL6+SKit for GL6+S / GL8TiS / ES8

    Bosch Ariston GL6+S Kit for GL6+S / GL8TiS / ES8 Learn More

    Regular Price: $109.95

    Special Price: $89.95

    Details
  4. AO Smith Pilot Assembly #100109295

    AO Smith Pilot Assembly #100109295

    AO Smith Pilot Assembly #100109295 (100109295) Learn More

    Regular Price: $114.00

    Special Price: $72.39

    Details
  5. Bosch Ariston GL6+ Kit

    Ariston GL6+ Kit

    Bosch Ariston GL6+ Kit Learn More

    Regular Price: $82.95

    Special Price: $63.95

    Details
  6. Bosch Ariston GL6PLUS-S Thermostat (#87387044420)

    Ariston GL6PLUS-S Thermostat (#87387044420)

    Bosch Ariston GL6+S Thermostat (#87387044420) Learn More

    Regular Price: $79.95

    Special Price: $59.95

    Details
  7. Bosch Ariston GL Kit for GL2.5/GL4/GL2.5Ti/GL4Ti

    Ariston GLKit for GL2.5/GL4/GL2.5Ti/GL4Ti

    Bosch Ariston GL Kit for GL2.5/GL4/GL2.5Ti/GL4Ti Learn More

    Regular Price: $69.95

    Special Price: $49.95

    Details
  8. AO Smith Pilot With Tubing #100112330

    AO Smith Pilot With Tubing #100112330

    AO Smith Pilot With Tubing #100112330 (100112330) Learn More

    Regular Price: $66.00

    Special Price: $45.04

    Details
  9. AO Smith Anode Rod #100109594

    AO Smith Anode Rod #100109594

    AO Smith Anode Rod #100109594 (100109594) Learn More

    Regular Price: $38.50

    Special Price: $30.95

    Details
  10. Bosch Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410)

    Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410)

    Bosch Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410) Learn More

    Regular Price: $76.95

    Special Price: $29.95

    Details

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